"NASA" confirmed that....

NASA confirmed that a half a football field-sized asteroid passing Earth next week

United States National Aeronautics and Space Administration confirmed that an approximate size of half a football field of asteroid passing Earth in the next week, than some satellites more "close to" the Earth, but will not hit the Earth "Canopy crisis.

No crisis hit the Earth

United States National Aeronautics and Space Administration researchers said the asteroid about 45 meters in diameter, may GMT at 19:00 on the the 15th (Beijing time at 3:00 on the 16th), passing speed of about 2.8 kilometers per hour by the Indian Ocean Sumatra island empty , the closest distance of the asteroid with the Earth's surface is about 27,000 km.

In contrast, hundreds of pieces of communications and weather satellites orbit about 35,000 km above the ground.

The researchers confirmed While this asteroid is no risk of striking Earth. The United States National Aeronautics and Space Administration's Jet Propulsion Laboratory Near-Earth Objects senior researcher Don Yeomans, repeatedly stressed at a news conference: "rocket asteroid's orbit is well known, there is no impact (Earth) may."

He said, "If" While this planet hit the Earth, the equivalent of 2.4 million tons of TNT exploded.

The Yeomans simultaneously infer that asteroid passing does not pose a threat to communications and weather satellites. "People do not, it will not red card." Yeomans said, "I is not expected to have any trouble."

While this asteroid last year by the Spaniards found named 2012DA14, mainly composed of silicate, specific shape and exact size or mystery. Expected in it passing close to Earth, people in some areas with the naked eye or with the aid of a simple telescope.

Occur once every 40 years

While this asteroid hit the earth's risk, but it is close to passing phenomenon that is necessary to track the trajectory of near-Earth asteroids.

The United States National Aeronautics and Space Administration, said the track nearly a million stars in the body closer to the Earth's distance in the past 15 years, the total number of stars within less than a related area into. NEOs senior staff Lindley Johnson said: "We are the world (researchers) are not all that money spent on this matter.

The researchers did not completely rule out the Earth by the asteroid risk, but generally finds that this possibility is extremely small. United States National Aeronautics and Space Administration estimate 2012DA14 similar size asteroid passing close to Earth phenomenon occurs once about every 40 years, the event may be the type of asteroid impacts Earth once every 1,200 years.

Send astronauts to asteroid

In addition to close monitoring, the United States is considering to further explore the asteroid. U.S. President Barack Obama a few years ago, decades after the astronauts sent to the asteroid.

The senior staff of the NEO project Johnson said, the U.S. National Aeronautics and Space Administration is considering the explore asteroids variety of options, the most recent of a plan for the 2016 launch of a spacecraft to a large asteroid collect samples. While this spacecraft is expected to return to Earth in 2023.

For the people of the earth, some asteroids regarded as treasures. Some rich rare metal resources, is a supplement to the Earth's natural resources. On the other hand, some asteroids can provide shortcut access to resources for future solar system exploration, the human without resupply from Earth outward.

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This new theory ....

This new theory assumes that ribbons exist in a particular area, the neutral hydrogen atoms from the solar wind in the region through the Galactic magnetic field

Scientists recently proposed a new theory, the theory is that the edge of the solar system the huge mysterious particles ribbon is charged ions with a strong magnetic field interaction.

It is reported that this strange phenomenon was first discovered by NASA's Interstellar Boundary Detector (IBEX). Proposed a new theory of the scientists said, the new theory to help people understand the heliosphere boundary of the solar system how to interact with other things in the universe, and to tell people how Earth through the magnetic field of the interstellar matter, and then the magnetic field is how it affects our space environment. "

Heliosphere emitted particles to form an amazing narrowband and narrowband form theory has been more than twelve, but none of these theories satisfactorily explain narrowband forming principle.

Researchers from the University of New Hampshire and the Southwest Research Institute "trapped by a" closed model ", when they fled to the identity of neutral atoms formed this ribbon" new theory of charged ions in the solar system boundary . The ribbon of the new theory, first published in 2009 found that the research report and the study on the basis of quantitative modeling in 2010.

This new theory assumes that ribbons exist in a particular area, the neutral hydrogen atoms from the solar wind in the region through the Galactic magnetic field. The neutral atom is not affected by magnetic fields, but when their electrons are stripped they become charged ions, and starts the high-speed rotation around the magnetic field lines. This process will guide the charged ions back to the sun, and timely access to electronic ion but also back into neutral atoms, which may explain why the ribbon of neutral atoms to produce additional.

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News From "NASA"

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Image: This composite of the giant barred spiral galaxy NGC 6872 combines visible light images from the European Southern Observatory's Very Large Telescope with far-ultraviolet (1,528 angstroms) data from NASA's GALEX and 3.6-micron infrared data acquired by NASA's Spitzer Space Telescope. A previously unsuspected tidal dwarf galaxy candidate appears only in the ultraviolet, indicating the presence of many hot young stars. IC 4970, the small disk galaxy interacting with NGC 6872, is located above the spiral's central region. The spiral is 522,000 light-years across from the tip of one outstretched arm to the tip of the other, which makes it about 5 times the size of our home galaxy, the Milky Way. Images of lower resolution from the Digital Sky Survey were used to fill in marginal areas not covered by the other data. (Credit: NASA's Goddard Space Flight Center/ESO/JPL-Caltech/DSS)

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SLS model 'flies' through Langley wind tunnel testing

NASA's Space Launch System buffet model in NASA's Langley Researcher Center's Transonic Dynamics Tunnel. The SLS is America's next heavy-lift launch vehicle that will provide an entirely new capability for science and human exploration beyond Earth's orbit. Credit: NASA/LaRC

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Just 96 days since their launch, NASA's twin Van Allen Probes have already provided new insights into the structure and behavior of the radiation belts that surround Earth, giving scientists a clearer understanding about the fundamental physical properties of these regions more than half a century after their discovery.

A graphic depicting the twin Van Allen Probes in orbit within Earth's magnetic field. Credit: JHU/APL

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"Kalpana Chawla "

Kalpana Chawla was born on 17 March 1962 in Karnal, Haryana, India. Called “Montu” by the family, she chose the name “Kalpana” at age three years old upon starting school. She attended Tagore Bal Niketan school, followed by Dyal Singh College and DAV College for Women, all in Karnal. Kalpana had decided on a career in aeronautical engineering at an early age, and in furtherance of this ambition attended Punjab Engineering College in Chandigarh.
In 1982 Kalpana went to the USA to undertake a master’s degree programme at the University of Texas at Arlington, followed in 1984 by a doctorate programme at the University of Colorado in Boulder. Despite the loss of space shuttle Challenger in January 1986, she decided to apply for the NASA astronaut corps once she became eligible. After graduating in 1988, she took up a research scientist position at NASA Ames Research Center in Sunnyvale, California.

In the shadow of Ames’ massive wind tunnels, Kalpana specialized in computational fluid dynamics to develop methods to predict the behaviour of air as it flowed around aircraft. She simultaneously earned various pilot and flight instructor qualifications at a flying club in nearby Palo Alto. In 1993, Kalpana responded to a NASA announcement for astronaut candidate applications. We found out later that she had made it fairly far along the selection process, but was not chosen that year. She reapplied in the summer of 1994 and that December received an invitation to join the 1995 NASA astronaut candidate class.

In February 1995 we moved to Houston, Texas, whereupon Kalpana started the astronaut training programme. Her class graduated one year later, and in November 1996 Kalpana was assigned to the STS-87 mission aboard space shuttle Columbia. The mission flew in November – December 1997 during which Kalpana spoke with Prime Minister Inderjit K. Gujral from orbit. After a two-year interlude, she was assigned to the STS-107 mission in the summer of 2000. This mission launched on 16 January 2003 aboard space shuttle Columbia. After a very successful flight, Columbia was lost with its crew during reentry into Earth's atmosphere on 1 February 2003.

Kalpana’s name has been given to a hill on Mars, a star in deep space, college, scholarships, and awards. Her story is an example of the success that can be earned from hard work and persistence, and her life serves as an inspiration to Indian school children and youth who see themselves reflected in her.

STS087-E-5026 (November 22, 1997) Astronauts Kalpana Chawla, mission specialist; and Kevin R. Kregel, mission commander, onboard the Space Shuttle Columbia during flight day 4 activity. Dr. Chawla works at the Microgravity Glovebox. The photograph was taken with an Electronic Still Camera (ESC) at 21:47:32 

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ScienceAlert 05

A team of researchers have found evidence that the western long-beaked echidna isn't extinct in Australia and may still be roaming in the West Kimberley region. There is a small and declining population of western long-beaked echidna in Papua New Guinea [pictured] - finding a surviving population in Australia could help researchers save the species.

This microscope image shows the scales on the wings of a Prola Beauty butterfly, which reflect light to produce an amazing display of colour. 

Genes can jump from snakes to cows, according to new research. An Australian study suggests a quarter of a cow's genetic makeup originated in reptiles, challenging conventional thinking that DNA in complex organisms is only passed from parent to offspring. The scientists aren't sure how the DNA passed between the species, but suggests ticks may be responsible.

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NASA or National Aeronautics and Space Administration

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PHOTO CREDIT: NASA or National Aeronautics and Space Administration 

CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station in Florida, the United Launch Alliance Atlas V rocket, carrying NASA’s twin Radiation Belt Storm Probes, or RBSP, is rolled back from Space Launch Complex 41 to the Vertical Integration Facility. The rocket and spacecraft will be secured and protected from inclement weather due to Tropical Storm Isaac. RBSP will explore changes in Earth's space environment caused by the sun -- known as "space weather" -- that can disable satellites, create power-grid failures and disrupt GPS service. The mission also will provide data on the fundamental radiation and particle acceleration processes throughout the universe. The launch is rescheduled for 4:05 a.m. EDT on Aug. 30, pending approval from the range. For more information on RBSP

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PHOTO CREDIT: NASA or National Aeronautics and Space Administration CAPE CANAVERAL, Fla. – An unfavorable weather forecast as a result of Tropical Storm Isaac approaching Florida kept NASA's twin Radiation Belt Storm Probes, or RBSP, on Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida. Managers decided to roll the Atlas V rocket off the launch pad and back to the Vertical Integration Facility to ensure the launch vehicle and RBSP spacecraft are secured and protected from inclement weather. RBSP will explore changes in Earth's space environment caused by the sun -- known as "space weather" -- that can disable satellites, create power-grid failures and disrupt GPS service. The mission also will provide data on the fundamental radiation and particle acceleration processes throughout the universe. The launch is rescheduled for 4:05 a.m. EDT on Aug. 30, pending approval from the range. For more information on RBSP

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CAPE CANAVERAL, Fla. – At Cape Canaveral Air Force Station in Florida, the United Launch Alliance, or ULA, Atlas V rocket carrying NASA’s twin Radiation Belt Storm Probes, or RBSP, heads to the launch pad after rolling out of the ULA Vertical Integration Facility at Space Launch Complex 41 at 1:59 p.m. EDT. The Atlas V rocket had been rolled back to the facility on August 26 to ensure the launch vehicle and RBSP spacecraft were secured and protected from inclement weather caused by Tropical Storm Isaac. RBSP will explore changes in Earth's space environment caused by the sun -- known as "space weather" -- that can disable satellites, create power-grid failures and disrupt GPS service. The mission also will provide data on the fundamental radiation and particle acceleration processes throughout the universe. The launch is rescheduled for 4:05 a.m. EDT on Aug. 30, pending approval from the range. For more information on RBSP,

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Pictures....

• Description: Colorized transmission electron micrograph (TEM) of rough endoplasmic reticulum (ER) from an acinar cell in the pancreas.

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